Astragalus lentiginosus var. piscinensis |
Astragalus lentiginosus var. palans |
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Fish Slough milk vetch |
freckled milkvetch, straggling milkvetch |
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Habit | Plants perennial, to 100 cm. | Plants perennial (sometimes short-lived), (10–)15–35(–40) cm, herbage green or subglabrescent. |
Stems | prostrate. |
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Leaves | 2–5 cm; leaflets 3 or 5, blades linear-oblanceolate, 7–15 mm, terminal leaflet 14–30 mm, apex obtuse or subacute. |
(3.5–)5–11cm; leaflets 13–21(or 23), blades broadly obovate-cuneate, oblong-elliptic, oblong-oblanceolate, or suborbiculate-obcordate, (3–)5–17(–23) mm, apex obtuse, emarginate, or subacute, adaxial surface glabrous. |
Racemes | shortly 5–12-flowered, short and compact in fruit; axis 1.5–4 cm in fruit. |
loosely (6–)10–28-flowered; axis elongating or not, (1–)2–12(–14.5) cm in fruit. |
Peduncles | 2–5.5 cm. |
(3.5–)5–11 cm. |
Flowers | 13 mm; calyx 7 mm, tube 4.5 mm, lobes 2.5 mm; corolla purple. |
13.5–17.5(–18.3) mm; calyx 6.3–9.4 mm, tube 4.7–6.8 mm, lobes (0.9–)1.1–3(–4) mm; corolla pink-purple. |
Legumes | mottled, ovoid-acuminate, moderately inflated, 20–24 × 8–12 mm, stiffly papery, strigulose; beak incurved, 4.5–7 mm, bilocular. |
spreading, declined, or spreading-ascending, green becoming stramineous then blackish, ± straight to uniformly or hamately incurved, obliquely linear-lanceoloid to narrowly ovoid-acuminate, not or scarcely inflated, dehiscent on ground, (12–)15–27 × 4–8.5 mm, ± bilocular, somewhat fleshy becoming leathery or stiffly papery, glabrous or strigulose; beak 5–8 mm, unilocular. |
Seeds | 18. |
20–42. |
2n | = 22. |
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Astragalus lentiginosus var. piscinensis |
Astragalus lentiginosus var. palans |
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Phenology | Flowering Jun–Jul. | Flowering Apr–Jun. |
Habitat | Saline seep, moist at least in springtime, growing with Ivesia, Juncus, and other herbs. | Salt-desert shrub, blackbrush, juniper, pinyon-juniper, and mixed desert shrub communities. |
Elevation | 1200–1300 m. (3900–4300 ft.) | 1100–1900 m. (3600–6200 ft.) |
Distribution |
CA |
AZ; CO; UT |
Discussion | Variety piscinensis is known from Fish Slough northwest of Bishop in Mono County. It is similar in habit to vars. multiracemosus and sesquimetralis. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Variety palans is known from northern Arizona, excluding the Coconino Plateau and upper Verde Valley, and from southwestern Colorado and southeastern Utah. There is no substantial difference between material included within the concept of var. palans and Astragalus bryantii, which R. C. Barneby (1964) included within sect. Leptocarpi. S. L. Welsh (2007) considered it significant that fallen fruits, characteristic of var. palans, are included with the type collection of A. bryantii. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | A. palans, A. bryantii | |
Name authority | Barneby: Brittonia 29: 378, fig. 2. (1977) | (M. E. Jones) M. E. Jones: Contr. W. Bot. 8: 4. (1898) |
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